source: trunk/src/testing/app/ishare/FastDXT/main.cpp @ 4

/******************************************************************************
 * Fast DXT - a realtime DXT compression tool
 *
 * Author : Luc Renambot
 *
 * Copyright (C) 2007 Electronic Visualization Laboratory,
 * University of Illinois at Chicago
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following disclaimer
 *    in the documentation and/or other materials provided with the distribution.
 *  * Neither the name of the University of Illinois at Chicago nor
 *    the names of its contributors may be used to endorse or promote
 *    products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Direct questions, comments etc about SAGE to http://www.evl.uic.edu/cavern/forum/
 *
 *****************************************************************************/

#include "dxt.h"
#include "util.h"

#if defined(__APPLE__)
#define memalign(x,y) malloc((y))
#else
#include <malloc.h>
#endif

int
main(int argc, char** argv)
{
  ALIGN16( byte *in );
  ALIGN16( byte *out);
  double t1, t2;
  int nbbytes;

        // Initialize some timing functions and else
  aInitialize();

  /*
    Read an image.
  */
  unsigned long width = atoi(argv[1]);
  unsigned long height = atoi(argv[2]);

  in = (byte*)memalign(16, width*height*4);
  memset(in, 0, width*height*4);

  FILE *f=fopen(argv[3], "rb");
  fread(in, 1, width*height*4, f);
  fclose(f);

  out = (byte*)memalign(16, width*height*4);
  memset(out, 0, width*height*4);

  fprintf(stderr, "Converting to raw: %ldx%ld\n", width, height);

  t1 = aTime();
  for (int k=0;k<100;k++)
    {
                CompressImageDXT1( in, out, width, height, nbbytes);
    }
  t2 = aTime();

  fprintf(stderr, "Converted to DXT: %d byte, compression %ld\n",
          nbbytes, (width*height*4) / (nbbytes));
  fprintf(stderr, "Time %.2f sec, Single %.2f sec, Freq %.2f Hz\n",
          t2-t1, (t2-t1)/100.0, 100.0/(t2-t1) );
  fprintf(stderr, "MP/sec %.2f\n",
          ((double)(width*height)) / ((t2-t1)*10000.0) );

#if 1
  FILE *g=fopen("out.dxt", "wb+");
  fwrite(&width, 4, 1, g);
  fwrite(&height, 4, 1, g);
  //nbbytes = width * height * 4 / 4; //DXT5
  nbbytes = width * height * 3 / 6; // DXT1
  fwrite(out, 1, nbbytes, g);
  fclose(g);
#endif

  memfree(in);
  memfree(out);

  return 0;
}